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Comprehensive energy-management program. Hybrid photovoltaic/thermal absorber. Annual report, September 1, 1980-December 31, 1981 (open access)

Comprehensive energy-management program. Hybrid photovoltaic/thermal absorber. Annual report, September 1, 1980-December 31, 1981

Research work was done during the reporting period on the two-part research program: (A) to improve energy conservation through increased unit and system efficiencies, energy management, and system optimization, and (B) to develop a novel, low-cost hybrid photovoltaic/thermal absorber. Performance tests were conducted on all the boilers and chillers on campus. Several corrective measures were indicated and implemented. A detailed survey of energy use by functions and consumption/demand study has been in progress. A preliminary computer simulation model of the entire campus has been developed and made operational. It has been demonstrated both analytically and experimentally that the reradiation losses from the absorber can be reduced significantly by utilizing a light-pipe absorber. Two paraboloidal dishes, one of 6 ft diameter and the other of 20 ft diameter have been utilized. Collector efficiencies have been measured at coolant outlet temperatures up to 282/sup 0/C with a square light-pipe absorber and with 6 ft diameter concentrator. Laser ray testing was conducted on both the 6 ft and 20 ft diameter concentrators. Design of the total energy absorber has been completed.
Date: December 1, 1981
Creator: Kumar, G. N.; Sellers, J. P. & Dybczak, Z. W.
Object Type: Report
System: The UNT Digital Library
Evaluation of models for developing biological input for the design and location of water-intake structures (open access)

Evaluation of models for developing biological input for the design and location of water-intake structures

An approach for assessing multiple stimulus/response relations between fish and water intake structures is presented in this report. The approach stresses stimulus/response relations influencing fish and shellfish distribution and is made up of two methods. The first places emphasis on spatial and temperal distributions of populations; information is presented in the form of a non-predictive model, which allows for organizing information and documenting review processes. The second approach encompasses functional relationships between environmental and biological stimuli and responses of organisms. By using the two methods together, functional relationships can be evaluated to define the distribution of a fish or shellfish species. This information can then be used to resolve questions relating to impingement and entrainment.
Date: December 1, 1981
Creator: Simmons, M. A. & McKenzie, D. H.
Object Type: Report
System: The UNT Digital Library
Procedure for developing biological input for the design, location, or modification of water-intake structures (open access)

Procedure for developing biological input for the design, location, or modification of water-intake structures

To minimize adverse impact on aquatic ecosystems resulting from the operation of water intake structures, design engineers must have relevant information on the behavior, physiology and ecology of local fish and shellfish. Identification of stimulus/response relationships and the environmental factors that influence them is the first step in incorporating biological information in the design, location or modification of water intake structures. A procedure is presented in this document for providing biological input to engineers who are designing, locating or modifying a water intake structure. The authors discuss sources of stimuli at water intakes, historical approaches in assessing potential/actual impact and review biological information needed for intake design.
Date: December 1, 1981
Creator: Neitzel, D. A. & McKenzie, D. H.
Object Type: Report
System: The UNT Digital Library
Guidance manual for the input of biological information to water-intake-structure design (open access)

Guidance manual for the input of biological information to water-intake-structure design

This manual is intended to provide guidance to the biologist who is asked to provide biological input during the construction or subsequent alteration of a water intake structure. Examples of the types of biological information that might be included in intake design are presented. Procedures for quantifying biological information and defining specific tasks that will generate quantifiable data are discussed. Procedures described apply both to new and modified water intake structures.
Date: December 1, 1981
Creator: Neitzel, D. A.; Simmons, M. A. & McKenzie, D. H.
Object Type: Report
System: The UNT Digital Library
Bond-Strength Studies for 1-Mil-Diameter Gold Wires Bonded to Hybrid Microcircuit Substrates (open access)

Bond-Strength Studies for 1-Mil-Diameter Gold Wires Bonded to Hybrid Microcircuit Substrates

Detailed studies of the failure probability for gold wires bonded to multiplexer substrates under severe acceleration in the W79 artillery shell environments were made. The studies included: the calculated resultant pull forces exerted on the bond joints due to the W79 acceleration environments; the suitability of the loop-hook pull tests and the use of the normal Gaussian distribution theory for statistical description of bond strengths; and the probability of failure for gold wires bonded to multiplexer substrates under artillery shell accelerations using fixed angle pull tests and a Weilbull distribution theory for the statistical description. Preliminary statistical analyses of the bond strength data obtained from the conventional loop-hook pull tests for a multiplexer substrate HMC, have shown that the ball bond is strong enough to withstand the 0.17 gram design limit load due to the W79 gun barrel environments with a very low probability of failure. For the wedge bond, however, the results of a statistical analysis for the bond strength agree with experience which shows that the wedge bonds are generally much weaker than ball bonds in multiplexer substrates, and the probability of failure may be high enough to cause a problem. The degradation of the wedge bond strength …
Date: December 1, 1981
Creator: Kan, Y.R. & Prantil, V.C.
Object Type: Report
System: The UNT Digital Library
EBT-P gamma-ray shielding system (open access)

EBT-P gamma-ray shielding system

An elaborate study was carried out for the coil and biological shield of the ELMO Bumpy Torus proof-of-principle (EBT-P) device. A three-dimensional scoping study for the coil shield was performed for four different shielding options to define the heat load for each component and check the compliance with the design criterion of 10 watts maximum heat per coil from the gamma ray sources. Also, a detailed biological dose survey was performed which included: (a) the dose equivalent inside and outside the building, (b) the dose equivalent from the two mazes of the machine room, and (c) the skyshine contribution to the dose equivalent.
Date: December 1, 1981
Creator: Gohar, Y.
Object Type: Report
System: The UNT Digital Library
Chemicals identified in human biological media: a data base. Third annual report, October 1981 (open access)

Chemicals identified in human biological media: a data base. Third annual report, October 1981

Data from almost 1600 of the 3800 body-burden documents collected to date have been entered in the data base as of October 1981. The emphasis on including recent literature and significant research documents has resulted in a chronological mix of articles from 1974 to the present. When body-burden articles are identified, data are extracted and entered in the data base by chemical and tissue/body fluid. Each data entry comprises a single record (or line entry) and is assigned a record number. If a particular document deals with more than one chemical and/or tissue, there will be multiple records for that document. For example, a study of 5 chemicals in each of 3 tissues has 15 different records (or 15 line entries) in the data base with 15 record numbers. Record numbers are assigned consecutively throughout the entire data base and appear in the upper left corner of the first column for each record.
Date: December 1, 1981
Creator: Cone, M.V.; Baldauf, M.F. & Martin, F.M. (comps.)
Object Type: Report
System: The UNT Digital Library
Nuclear waste-form risk assessment for US Defense waste at Savannah River Plant. Annual report FY 1981 (open access)

Nuclear waste-form risk assessment for US Defense waste at Savannah River Plant. Annual report FY 1981

Savannah River Plant has been supporting the Lawrence Livermore National Laboratory in its present effort to perform risk assessments of alternative waste forms for defense waste. This effort relates to choosing a suitable combination of solid form and geologic medium on the basis of risk of exposure to future generations; therefore, the focus is on post-closure considerations of deep geologic repositories. The waste forms being investigated include borosilicate glass, SYNROC, and others. Geologic media under consideration are bedded salt, basalt, and tuff. The results of our work during FY 1981 are presented in this, our second annual report. The two complementary tasks that comprise our program, analysis of waste-form dissolution and risk assessment, are described.
Date: December 1, 1981
Creator: Cheung, H.; Edwards, L. L.; Harvey, T. F.; Jackson, D. D. & Revelli, M. A.
Object Type: Report
System: The UNT Digital Library
Understanding radioactive waste (open access)

Understanding radioactive waste

This document contains information on all aspects of radioactive wastes. Facts are presented about radioactive wastes simply, clearly and in an unbiased manner which makes the information readily accessible to the interested public. The contents are as follows: questions and concerns about wastes; atoms and chemistry; radioactivity; kinds of radiation; biological effects of radiation; radiation standards and protection; fission and fission products; the Manhattan Project; defense and development; uses of isotopes and radiation; classification of wastes; spent fuels from nuclear reactors; storage of spent fuel; reprocessing, recycling, and resources; uranium mill tailings; low-level wastes; transportation; methods of handling high-level nuclear wastes; project salt vault; multiple barrier approach; research on waste isolation; legal requiremnts; the national waste management program; societal aspects of radioactive wastes; perspectives; glossary; appendix A (scientific American articles); appendix B (reference material on wastes). (ATT)
Date: December 1, 1981
Creator: Murray, R.L.
Object Type: Report
System: The UNT Digital Library
Spontaneous breaking of supersymmetry (open access)

Spontaneous breaking of supersymmetry

There has been recently a revival of interest in supersymmetric gauge theories, stimulated by the hope that supersymmetry might help in clarifying some of the questions which remain unanswered in the so called Grand Unified Theories and in particular the gauge hierarchy problem. In a Grand Unified Theory one has two widely different mass scales: the unification mass M approx. = 10/sup 15/GeV at which the unification group (e.g. SU(5)) breaks down to SU(3) x SU(2) x U(1) and the mass ..mu.. approx. = 100 GeV at which SU(2) x U(1) is broken down to the U(1) of electromagnetism. There is at present no theoretical understanding of the extreme smallness of the ratio ..mu../M of these two numbers. This is the gauge hierarchy problem. This lecture attempts to review the various mechanisms for spontaneous supersymmetry breaking in gauge theories. Most of the discussions are concerned with the tree approximation, but what is presently known about radiative correction is also reviewed.
Date: December 1, 1981
Creator: Zumino, B.
Object Type: Article
System: The UNT Digital Library
Digital neutron radiography using plane converters with multiwire proportional chambers (open access)

Digital neutron radiography using plane converters with multiwire proportional chambers

The work described here was completed more than three years ago, and represents, in large part the PhD and MS thesis research of two of the present authors. Much of it has been reported previously elsewhere. It constitutes an effort to develop and study a moderately low cost, moderate resolution, high sensitivity, on-line method for digital neutron radiography, intended for use where neutron fluence was limited by source strength, or received dose. The basic imaging system consisted of a position-sensitive gas proportional chamber together with its associated imaging electronics, and a plane neutron converter. Enriched-boron, gadolinium, and polyethylene (for fast neutrons) converters were analyzed and tested. Some work was done on digital data enhancement, and efforts to improve spatial resolution included pressurizing the proportional-chamber gas to reduce the track lengths of the neutron-interaction products.
Date: December 1, 1981
Creator: Kaplan, S. N.; Director, B. A.; Perez-Mendez, V. & Valentine, K. H.
Object Type: Article
System: The UNT Digital Library
Age and location of volcanic centers less than or equal to 3. 0 m. y. old in Arizona, New Mexico, and the Trans-Peco area of West Texas (open access)

Age and location of volcanic centers less than or equal to 3. 0 m. y. old in Arizona, New Mexico, and the Trans-Peco area of West Texas

This map is one of a series of maps designed for hot dry rock geothermal assessment in Arizona, New Mexico, and the Trans-Peco area of the west Texas. The 3.0 m.y. cutoff age was selected because original heat has probably largely dissipated in older rocks. The location of volcanic centers is more important to geothermal resource assessment than the location of their associated volcanic rocks; however, ages have been determined for numerous flows far from their source. Therefore, the distribution of all volcanic rocks less than or equal to 3.0 m.y. old, for which there is at least one determined age, are shown. Location of the volcanic vents and rocks were taken from Luedke and Smith (1978). Ages were obtained from the original literature in all cases except for McKee and others (1974), Silberman and others (1976), Ulrich and McKee (1976), and Wolfe and McKee (1976). The abstract by McKee and others (1974) lists only the ages of various rocks they dated, so locations were taken from Luedke and Smith (1978). The dates of Silberman and others (1976), Ulrich and McKee (1976), and Wolfe and McKee (1976) are taken from written communications cited by Luedke and Smith (1978); therefore, both …
Date: December 1, 1981
Creator: Aldrich, M.J. & Laughlin, A.W.
Object Type: Report
System: The UNT Digital Library
Occidental Geothermal, Inc. , Oxy geothermal power plant No. 1. Final environmental impact report (open access)

Occidental Geothermal, Inc. , Oxy geothermal power plant No. 1. Final environmental impact report

The project-specific environmental analysis covers the following: geology, soils, water resources, biology, air quality, noise, waste management, health, safety, transportation, energy and material resources, cultural resources, socioeconomics, public services, land use, and aesthetics. Other topics covered are: the cumulative envionmental analysis; unavoidable significant adverse environmental effects; irreversible environmental changes and irretrievable commitments of energy and materials; the relationship between local short-term uses of man's environment and the maintenance and enhancement of long-term productivity; growth-inducing impacts; and alternatives to the proposed action. (MHR)
Date: December 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Analyses of mixed-hydrocarbon binary thermodynamic cycles for moderate-temperature geothermal resources using regeneration techniques (open access)

Analyses of mixed-hydrocarbon binary thermodynamic cycles for moderate-temperature geothermal resources using regeneration techniques

Studies of basic binary geothermal cycles utilizing mixtures of hydrocarbons have shown better performance than for pure fluids for a moderate temperature (360/sup 0/F) resource. However, a loss is net geofluid effectiveness (watt-hours net plant output/1bm geofluid) results when the geofluid outlet temperature is limited to temperatures in excess of 160/sup 0/F to alleviate a silica precipitation problem. This study examined three working fluids consisting of binary mixtures of hydrocarbons to see if use of regenerative preheating techniques such as turbine exhaust recupation and/or turbine bleed could recover the loss in geofluid effectiveness for a 160/sup 0/F geofluid outlet temperature. Results showed that with the most promising of the three working fluids a turbine exhaust recuperator alone is sufficient to recover all the lost effectiveness while maintaining the geofluid outlet temperature at 160/sup 0/F. A brief study to investigate cold weather operation with that working fluid, and using the recuperator, showed no major detrimental response of the system; however, silica precipitation may present a problem in extremely cold weather, as the geofluid outlet temperature dropped below 160/sup 0/F for the lowest wet bulb temperatures studied.
Date: December 1, 1981
Creator: Demuth, O. J. & Kochan, R. J.
Object Type: Report
System: The UNT Digital Library
Energy and land use (open access)

Energy and land use

This report addresses the land use impacts of past and future energy development and summarizes the major federal and state legislation which influences the potential land use impacts of energy facilities and can thus influence the locations and timing of energy development. In addition, this report describes and presents the data which are used to measure, and in some cases, predict the potential conflicts between energy development and alternative uses of the nation's land resources. The topics section of this report is divided into three parts. The first part describes the myriad of federal, state and local legislation which have a direct or indirect impact upon the use of land for energy development. The second part addresses the potential land use impacts associated with the extraction, conversion and combustion of energy resources, as well as the disposal of wastes generated by these processes. The third part discusses the conflicts that might arise between agriculture and energy development as projected under a number of DOE mid-term (1990) energy supply and demand scenarios.
Date: December 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Production of titanium from ilmenite: a review (open access)

Production of titanium from ilmenite: a review

The general principles for beneficiation of titanium ores are reviewed and the specific processes used in individual units in various countries are discussed. This is followed by a critical evaluation of various current and potential reduction methods for the production of titanium metal from the processed concentrates. Finally, the report outlines a research program for the development of a commercially viable alternative method for the production of titanium metal.
Date: December 1, 1981
Creator: Kohli, R.
Object Type: Report
System: The UNT Digital Library
MESOI: an interactive Lagrangian trajectory puff diffusion model (open access)

MESOI: an interactive Lagrangian trajectory puff diffusion model

MESOI is an interactive Lagrangian trajectory puff diffusion model based on an earlier model by Start and Wendell at the Air Resources Laboratory Field Office at Idaho Falls, Idaho. Puff trajectories are determined using spatially and temporally varying wind fields. Diffusion in the puffs is computed as a function of distance traveled and atmospheric stability. Exposures are computed at nodes of a 31 by 31 grid. There is also provision for interpolation of short term exposures at off-grid locations. This report discusses: the theoretical bases of the model, the numerical approach used in the model, and the sensitivity and accuracy of the model. It contains a description of the computer program and a listing of the code. MESOI is written in FORTRAN. A companion report (Athey, Allwine and Ramsdell, 1981) contains a user's guide to MESOI and documents utility programs that maintain the data files needed by the model.
Date: December 1, 1981
Creator: Ramsdell, J.V. & Athey, G.F.
Object Type: Report
System: The UNT Digital Library
Development of annular-coated-pressurized and sphere-pac LWR fuels (open access)

Development of annular-coated-pressurized and sphere-pac LWR fuels

Annular-coated (graphite)-pressurized and sphere-pac fuel rod designs, which are expected to exhibit improved PCI-failure resistance, and, thus, more reliable extended burnup performance, are being developed. Data sufficient to provide the technical bases needed to license lead test assemblies of the improved designs for irradiation in commercial LWRs are being obtained. Out-of-reactor experiments, in-reactor instrumented experiments, in-reactor power-ramp tests, and lead-rod demonstration irradiations are providing the needed data to support the technical bases. Results obtained to-date confirm the expected performance improvement compared with a solid-pellet reference design. The degree of improvement with respect to PCI-resistance remains to be quantified during forthcoming power-ramp tests on fuel rod segments irradiated to moderate burnup levels in a commercial LWR.
Date: December 1, 1981
Creator: Buckman, F. W.; Crouthamel, C. E.; Freshley, M. D. & Barner, J. O.
Object Type: Article
System: The UNT Digital Library
Study of inertia welding: the sensitivity of weld configuration and strength to variations in welding parameters (open access)

Study of inertia welding: the sensitivity of weld configuration and strength to variations in welding parameters

An experiment is described which is designed to demonstrate the forgiveness of inertia welding, that is, the relative insensitivity of weld strength to variations in energy (rotational speed of parts) and axial force. Although easily observed variations in the welding parameters produced easily observed changes in weldment configuration and changes in dimension (upset), only extremes in parameters produced changes in weld strength. Consequently, process monitoring and product inspection would be sufficient for quality assurance in a production environment.
Date: December 1, 1981
Creator: Mote, M.W.
Object Type: Report
System: The UNT Digital Library
GC/MS characterization of condensable tars in the output stream of a stirred fixed-bed gasifier (open access)

GC/MS characterization of condensable tars in the output stream of a stirred fixed-bed gasifier

The output stream of the stirred fixed-bed gasifier at the Morgantown Energy Technology Center was sampled for total entrained material. A major portion of the entrained material, in addition to particles, is condensable tar that is subsequently removed from the process gas by wet scrubbing. Characterization of the entrained materials, specifically the tar, is important to establish contaminant levels and to evaluate performance of downstream cleanup units. Samples of tars were collected from the process unit in a combined ice, dry ice, and liquid nitrogen sampler and stored in a refrigerator. The tar samples were then separated into asphaltene, neutral oil, tar acid, and base fractions by solvent extraction using toluene, pentane, sulfuric acid, and potassium hydroxide extraction. Characterization of the fractions obtained from these tars include IR, UV, GC, and GC/MS analysis. The mass spectrometer analysis of the various isolates shows that many individual peaks in the gas chromatograph are in fact mixtures that can be readily identified by the mass spectrometer. It was found that many of the species identified in these fractions were members of aromatic homologous series consisting of parent, mono, di, and tri substituted compounds. Compound identification was made by comparison of the data system …
Date: December 1, 1981
Creator: Lamey, S. C.; McCaskill, K. B. & Smith, R. R.
Object Type: Report
System: The UNT Digital Library
Moisture content analysis of covered uranium mill tailings (open access)

Moisture content analysis of covered uranium mill tailings

The use of vegetation and rock covers to stabilize uranium mill tailings cover systems is being investigated by Pacific Northwest Laboratory. A modeling study of moisture movement through the tailings and cover layers was initiated to determine the effect of the stabilizing techniques. The cover system was simulated under climatic conditions occurring at Grand Junction, Colorado. The cover consisted of a layer of wet clay/gravel mix followed by a capillary barrier of washed rock and a surface layer of fill soil. Vegetation and rock were used to stabilize the surface layer. The simulation yielded moisture content and moisture storage values for the tailings and cover system along with information about moisture losses due to evaporation, transpiration, and drainage. The study demonstrates that different surface stabilization treatments lead to different degrees of moisture retention in the covered tailings pile. The evapotranspiration from vegetation can result in a relatively stable moisture content. Rock covers, however, may cause drainage to occur because they reduce evaporation and lead to a subsequent increase in moisture content. It is important to consider these effects when designing a surface stabilization treatment. Drainage may contribute to a groundwater pollution problem. A surface treatment that allows the cover system …
Date: December 1, 1981
Creator: Mayer, D. W.; Beedlow, P. A. & Cadwell, L. L.
Object Type: Report
System: The UNT Digital Library
Investigation of the thermal response of a gasdynamic heater with helical impellers. Calspan Report No. 6961-A-1. [MAZE and TACO2D codes] (open access)

Investigation of the thermal response of a gasdynamic heater with helical impellers. Calspan Report No. 6961-A-1. [MAZE and TACO2D codes]

A gasdynamic heater, capable of producing contamination-free gas streams at temperatures up to 9000/sup 0/K, is being developed by the Vulcan project. The design of a cooling system for the case parts and the associated thermal analysis are a critical part of a successful design. The purpose of the present work was to perform a preliminary cooling passage design and complete thermal analysis for the center body liner, end plate liners and exit nozzle. The approach envisioned for this work was the use of a set of LLNL finite-element codes, called MAZE and TACO2D. These were to be used at LLNL in a series of visits by the Calspan principal investigator. The project was cancelled shortly after the first of these visits; this report contains a summary of the work accomplished during the abbreviated contract period, and a review of the items that will need to be considered when the work is resumed at some future date.
Date: December 1, 1981
Creator: Rae, W. J.
Object Type: Report
System: The UNT Digital Library
Integrated operations plan for the MFTF-B Mirror Fusion Test Facility. Volume II. Integrated operations plan (open access)

Integrated operations plan for the MFTF-B Mirror Fusion Test Facility. Volume II. Integrated operations plan

This document defines an integrated plan for the operation of the Lawrence Livermore National Laboratory (LLNL) Mirror Fusion Test Facility (MFTF-B). The plan fulfills and further delineates LLNL policies and provides for accomplishing the functions required by the program. This plan specifies the management, operations, maintenance, and engineering support responsibilities. It covers phasing into sustained operations as well as the sustained operations themselves. Administrative and Plant Engineering support, which are now being performed satisfactorily, are not part of this plan unless there are unique needs.
Date: December 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Selected transuranic waste immobilization systems (open access)

Selected transuranic waste immobilization systems

Waste contaminated with transuranic (TRU) elements may require treatment prior to final disposal. Pacific Northwest Laboratory has conducted research and development to identify and characterize the wastes; to evaluate the possible immobilization requirements and treatment alternatives; and to develop immobilization process technologies. This paper describes systems that are anticipated to be capable of immobilizing a selected TRU waste stream consisting of a blend of process sludge and incinerator ash. The selected waste streams are based on the waste compositions generated at the Rocky Flats Plant, Golden, Colorado. The specific process and waste forms are: in-can glass melting, borosilicate glass monolith; joule-heated glass melting, borosilicate/aluminosilicate glass monolith; glass marble, borosilicate/aluminosilicate glass marble; basalt glass-ceramic, basalt glass-ceramic monolith; cast cement, cast cement monolith; pressed cement, pressed cement pellet; and cold-pressed sintered ceramic, pressed ceramic pellet.
Date: December 1, 1981
Creator: Timmerman, C.L.; Treat, R.L. & Ross, W.A.
Object Type: Article
System: The UNT Digital Library